diff --git a/nix/t1/dependencies/_sources/generated.json b/nix/t1/dependencies/_sources/generated.json
index aff1e8df2..fc96b2217 100644
--- a/nix/t1/dependencies/_sources/generated.json
+++ b/nix/t1/dependencies/_sources/generated.json
@@ -41,7 +41,7 @@
     },
     "chisel": {
         "cargoLocks": null,
-        "date": "2024-09-06",
+        "date": "2024-09-11",
         "extract": null,
         "name": "chisel",
         "passthru": null,
@@ -53,11 +53,11 @@
             "name": null,
             "owner": "chipsalliance",
             "repo": "chisel",
-            "rev": "fd2ba0c73278e95df5820128062a1de1be6f4cc4",
-            "sha256": "sha256-oniOTue8NvYx+ypjB/trJzYi1RCEH16AslLlzabsVFY=",
+            "rev": "1b8118c6c1401077282b54576c840f9e0bc5af72",
+            "sha256": "sha256-7au4sFiqcZ0Lx7uEEh5Wd16ecohMt1S6gwPMrHinn04=",
             "type": "github"
         },
-        "version": "fd2ba0c73278e95df5820128062a1de1be6f4cc4"
+        "version": "1b8118c6c1401077282b54576c840f9e0bc5af72"
     },
     "chisel-interface": {
         "cargoLocks": null,
diff --git a/nix/t1/dependencies/_sources/generated.nix b/nix/t1/dependencies/_sources/generated.nix
index 3872e8249..bff7969b2 100644
--- a/nix/t1/dependencies/_sources/generated.nix
+++ b/nix/t1/dependencies/_sources/generated.nix
@@ -27,15 +27,15 @@
   };
   chisel = {
     pname = "chisel";
-    version = "fd2ba0c73278e95df5820128062a1de1be6f4cc4";
+    version = "1b8118c6c1401077282b54576c840f9e0bc5af72";
     src = fetchFromGitHub {
       owner = "chipsalliance";
       repo = "chisel";
-      rev = "fd2ba0c73278e95df5820128062a1de1be6f4cc4";
+      rev = "1b8118c6c1401077282b54576c840f9e0bc5af72";
       fetchSubmodules = false;
-      sha256 = "sha256-oniOTue8NvYx+ypjB/trJzYi1RCEH16AslLlzabsVFY=";
+      sha256 = "sha256-7au4sFiqcZ0Lx7uEEh5Wd16ecohMt1S6gwPMrHinn04=";
     };
-    date = "2024-09-06";
+    date = "2024-09-11";
   };
   chisel-interface = {
     pname = "chisel-interface";